Get matched with top excavation pros in Alstead, NH

"These guys are the BEST! Fast, efficient, good natured, innovative and the highest quality of craftsmanship! Project started just to fix woodshed, however it was too far gone so it came down. I saw visions of new project same time Ian did. He drew up plans the next day and I now have a woodshed and screened in back porch. I wanted them to preserve the integrity of my old house and use as much from the old woodshed as possible, barn siding, windows and church pews that came out of the house when converted from a church in 1836. So amazing! Thank you!"

"I hired them to do some excavation work and to put in a drainage system because of excessive water accumulating in my basement and yard every time it rained, I was very happy with the results,they solved all of my issues"

"Joe was great to work with. He did exactly what I asked for and went above and beyond with some material that was left over. I would definitely hire him again."

"Cornerstone Excavation did a great job definitely recommend."

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.\n\nTrip charge $100 will be taken off the contracted amount once agreement is signed.

"Very reliable and does a good job."

"He did everything start to finish from clearing the land, pouring concrete slab, to building my 40x60 metal barn. Would highly recommend great price and very professional service Thank you!!!!"

"He is easy to work with, responsive, reasonably priced and great attention to detail. Great company to work with!"

Hard working family man with the best intentions on getting the jobs done right

Owned and operated by Jide Williams, Alliance is a full-service site preparation and excavation company. We specialize in transforming raw land into build-ready sites through expert grading, land clearing, and demolition. Whether you need materials delivered, debris hauled out, or complex tank and stump removal, we provide the heavy equipment and the "lead contractor" expertise to keep your project on schedule and on budget.